Evidence map›Paper›PMID 34390346›Full record

ArticleNucleic acids research2021

Photo-activatable Ub-PCNA probes reveal new structural features of the Saccharomyces cerevisiae Polη/PCNA complex.

Siqi Shen, Gregory A Davidson, Kun Yang, Zhihao Zhuang

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 41% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Beyond the Lesion: Back to High Fidelity DNA Synthesis.Frontiers in molecular biosciences · 2021
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Siqi ShenDepartment of Chemistry and Biochemistry, University of Delaware, 214A Drake Hall, Newark, DE 19716, USA.
Gregory A DavidsonDepartment of Chemistry and Biochemistry, University of Delaware, 214A Drake Hall, Newark, DE 19716, USA.
Kun YangDepartment of Chemistry and Biochemistry, University of Delaware, 214A Drake Hall, Newark, DE 19716, USA.
Zhihao ZhuangDepartment of Chemistry and Biochemistry, University of Delaware, 214A Drake Hall, Newark, DE 19716, USA.ORCID 0000-0001-5047-9222
University of Delaware · US

Funding

This renovation project will create over 1455 sq. ft. of state- of-the-art reseaP20GM104316 · NIGMS · UNIVERSITY OF DELAWARE · PI SCHMITZ, KARL ROBERT · 2014 to 2024
$26.8M
Pilot Research Subproject ProgramP30GM110758 · NIGMS · UNIVERSITY OF DELAWARE · PI PATEL, SANDEEP · 2014 to 2018
$5.8M
NIH ADMINISTRATIVE SUPPLEMENT AUTOMATED PEPTIDE SYNTHESIZER ZHUANGR01GM129468 · NIGMS · UNIVERSITY OF DELAWARE · PI ZHUANG, ZHIHAO · 2019 to 2022
$1.3M
NIGMS NIH HHS P20 GM104316NIGMS NIH HHS P30 GM110758NIGMS NIH HHS R01 GM129468
6 · The paper itself

Abstract

The Y-family DNA polymerase η (Polη) is critical for the synthesis past damaged DNA nucleotides in yeast through translesion DNA synthesis (TLS). TLS is initiated by monoubiquitination of proliferating cell nuclear antigen (PCNA) and the subsequent recruitment of TLS polymerases. Although individual structures of the Polη catalytic core and PCNA have been solved, a high-resolution structure of the complex of Polη/PCNA or Polη/monoubiquitinated PCNA (Ub-PCNA) still remains elusive, partly due to the disordered Polη C-terminal region and the flexibility of ubiquitin on PCNA. To circumvent these obstacles and obtain structural insights into this important TLS polymerase complex, we developed photo-activatable PCNA and Ub-PCNA probes containing a p-benzoyl-L-phenylalanine (pBpa) crosslinker at selected positions on PCNA. By photo-crosslinking the probes with full-length Polη, specific crosslinking sites were identified following tryptic digestion and tandem mass spectrometry analysis. We discovered direct interactions of the Polη catalytic core and its C-terminal region with both sides of the PCNA ring. Model building using the crosslinking site information as a restraint revealed multiple conformations of Polη in the polymerase complex. Availability of the photo-activatable PCNA and Ub-PCNA probes will also facilitate investigations into other PCNA-containing complexes important for DNA replication, repair and damage tolerance.

Indexed as

BenzophenonesDNADNA-Binding ProteinsDNA-Directed DNA PolymeraseDNA ReplicationMacromolecular SubstancesMutationPhenylalanineProliferating Cell Nuclear AntigenProtein BindingSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsUbiquitin4-benzoylphenylalanineBenzophenonesDNADNA-Binding ProteinsDNA-Directed DNA PolymeraseMacromolecular SubstancesPhenylalaninePOL30 protein, S cerevisiaeProliferating Cell Nuclear AntigenSaccharomyces cerevisiae ProteinsUbiquitin

Identifiers

PMID34390346
PMCPMC8450101
OpenAlexW3188222218

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.